We've seen the chips that handle WiMax (Worldwide Interoperability for Microwave Access)…
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The company reckons combining the MIMO multiple-antenna approach with 802.16e wireless goodness means we could all be ditching both our home DSL connections and our attraction to crappy coffee shops if things work out. The reason? Nortel's so-called 4G wireless broadband is efficient and supposed to deliver bits at up to three times the speed of regular WiMax.

While exactly how fast that might be is unclear still, Nortel's deal clincher could well lie in the fact that its efficiency allows operators to build substantially less-dense networks that make it far cheaper overall (and, therefore, per user) to deliver streaming video, VoIP or whatever. – Jonny Hiratsuka